On Fri, 2009-04-10 at 15:12 -0700, Tan wrote:
> hello all,
>
>
> firstly, i have a particular need to quickly query for package info
> given a batch of files so, i've tried the following:
>
> rpm -qf `cat files.list` --nodigest --nosignature
>
> where files.list contains approximately 650 files. this query took 1s
> on my machine to complete while repeatedly invoking the same query for
> each filename took 1 min. however, rpm man page doesn't mention the
> -f (--file) option can take a list of files so i'm quite hesitant to
> use this in my script. can i reliably depend on this behavior?
>
> secondly, i'd like to have the package name and the filename used in
> the query to be printed in the format <package-name>:<filename>, so
> i've added a --qf '%{NAME}:%{FILENAMES}\n' to the query. this does
> what i want but it seems like a strange thing to do as FILENAMES is a
> list and should be enclosed in the [ ] brackets. i've read the doc
> and my usage should output something similarly to <package-name>:
> (array) instead. how can i print out the package name and filename
> properly? thanks alot.
#! /usr/bin/python -tt
import sys
import yum
if len(sys.argv) < 2:
sys.exit(1)
yb = yum.YumBase()
for line in open(sys.argv[1]):
line = line[:-1]
found = False
for pkg in yb.rpmdb.searchPrco(line, 'provides'):
found = True
print "%s:%s" % (pkg, line)
if not found:
print "<unknown>:%s" % line
...if you can't use the yum API, then looking at the above should give
you hints on how to convert to the rpm-python API. And if you can't use
python, that should give you hints on how to use the C API instead.
--
James Antill - james@xxxxxxxxxxxxxxxxx
"I'd just like to see a realistic approach to updates via
packages." -- Les Mikesell
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